#include "idl_types.h"

/*
   IDL structures for xattr file attributes

   this has nothing to do with RPC, we are just using our NDR/IDL
   infrastructure as a convenient way to store linearised information
   about a file in a architecture independent manner
*/

interface xattr
{
	const string XATTR_DOSATTRIB_NAME = "user.DosAttrib";
	const string XATTR_DOSATTRIB_ESTIMATED_SIZE = 64;

	/* we store basic dos attributes in a DosAttrib xattr. By
	   using a union we can cope with new version of this
	   structure more easily */
	typedef struct {
		uint32 attrib;
		uint32 ea_size;
		uint64 size;
		uint64 alloc_size;
		NTTIME create_time;
		NTTIME change_time;
	} xattr_DosInfo1;

	typedef union {
		[case(1)] xattr_DosInfo1 info1;
	} xattr_DosInfo;

	typedef [public] struct {
		uint16 version;
		[switch_is(version)] xattr_DosInfo info;
	} xattr_DosAttrib;


	/* we store DOS style extended attributes in a DosEAs xattr */
	const string XATTR_DOSEAS_NAME = "user.DosEAs";

	typedef struct {
		utf8string name;
		DATA_BLOB value;
	} xattr_EA;

	typedef [public] struct {
		uint16 num_eas;
		[size_is(num_eas)] xattr_EA *eas;
	} xattr_DosEAs;

	/* we store stream information in this xattr structure. Then
	   the streams themselves are stored in
	   user.DosStream.STREAMNAME or in external files, according
	   to the flags */
	const string XATTR_DOSSTREAMS_NAME = "user.DosStreams";

	const int XATTR_STREAM_FLAG_INTERNAL = 0x00000001;

	/* stream data is stored in attributes with the given prefix */
	const string XATTR_DOSSTREAM_PREFIX = "user.DosStream.";

	const int XATTR_MAX_STREAM_SIZE = 0x4000;

	typedef struct {
		uint32     flags;
		uint64     size;
		uint64     alloc_size;
		utf8string name;
	} xattr_DosStream;

	typedef [public] struct {
		uint32 num_streams;
		[size_is(num_streams)] xattr_DosStream *streams;
	} xattr_DosStreams;
}